EP3517323B1 - Vehicle tyres - Google Patents

Vehicle tyres Download PDF

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Publication number
EP3517323B1
EP3517323B1 EP18203921.4A EP18203921A EP3517323B1 EP 3517323 B1 EP3517323 B1 EP 3517323B1 EP 18203921 A EP18203921 A EP 18203921A EP 3517323 B1 EP3517323 B1 EP 3517323B1
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EP
European Patent Office
Prior art keywords
tyre
tread
transponder
vehicle
vehicle tyre
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EP18203921.4A
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German (de)
French (fr)
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EP3517323A1 (en
Inventor
Martin Kurz
Christoph Berger
Joachim Busche
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Continental Reifen Deutschland GmbH
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Continental Reifen Deutschland GmbH
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Publication of EP3517323A1 publication Critical patent/EP3517323A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/24—Wear-indicating arrangements
    • B60C11/246—Tread wear monitoring systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/24—Wear-indicating arrangements
    • B60C11/243—Tread wear sensors, e.g. electronic sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for

Definitions

  • the invention relates to a vehicle tire.
  • the object of the invention was to provide a vehicle tire with which vehicle tires with tire sensors can be improved.
  • An advantage of the invention can be seen in particular in the fact that the tread wear in the vehicle tire can be determined in a simple and automated manner with the new tire sensor.
  • the individual transponder or a plurality of transponders are arranged in a stick-shaped encapsulant.
  • the stick-shaped embedding material with the transponders can easily be placed in certain areas of the tread arrange
  • this form of tire sensors can be easily pre-assembled and can then be inserted in certain areas of the tread like tire spikes.
  • the transponders which in particular have an RFID chip, can also be easily read using appropriate readers. As profile wear progresses, the pin-shaped embedding material with the individual transponders is also worn away. If no more signals are received from a transponder when a corresponding query is made, this information can be used to determine the tread wear or the tread height or tread depth.
  • Another major advantage of this tire sensor is that the sensor does not require its own battery supply and the transponder signals can be read out via a radio link.
  • the tire sensor is in the form of a cylinder, with the height dimension of the cylinder being greater than the diameter of the cylinder.
  • the tire sensor can be arranged easily and with a high degree of strength in specific areas of the tread.
  • the diameter of the tire sensor is between 2 and 10 mm.
  • the tire sensor with the transponder can be used easily and with a high level of robustness in a tread block of the tread.
  • the embedding material consists of a plastic casting compound.
  • Another advantage of the plastic casting compound is that it is highly compatible with the rubber material of the tread.
  • the tire sensor with the transponder is introduced into the tread strip after the tire has been vulcanized.
  • the tire sensor is introduced into a prefabricated cavity in the tread with a spiked device.
  • the tire sensor is held in the tread by means of a force fit, a form fit, an adhesive connection and/or an adhesion promoter.
  • the hole diameter of the cavity in the tread would be smaller than the outside diameter of the tire sensor.
  • the transponder is designed in the form of a flat tablet with a material thickness of between 1 and 5 mm, preferably between 1 and 2 mm.
  • a multiplicity of transponders are stacked one above the other in a tire sensor.
  • FIG figure 1 A corresponding exemplary embodiment is shown in FIG figure 1 .
  • This design is particularly easy to implement since only a single tire sensor has to be arranged in a specific area of the tread.
  • a transponder is arranged in each tire sensor, with further tire sensors being arranged in adjacent tread blocks and the individual transponders being arranged at different distances from the tread surface.
  • FIG figure 2 A corresponding exemplary embodiment is shown in FIG figure 2 .
  • multiple tire sensors are placed in specific areas of the tread or in specific tread blocks. With this design, several areas of the tread are monitored with regard to the tread depth.
  • the transponder is coupled to a secondary antenna arranged in the vehicle tire. This significantly increases the transmission and reception range of the transponder.
  • the secondary antenna is formed by belt wires of the tire belt.
  • the secondary antenna is formed by conductive rubber material, with the conductive rubber material being arranged in the vehicle tire in the form of an antenna.
  • the conductive rubber material has the advantage that it has high compatibility with the rubber material of the tire.
  • the distance between the transponder and the tread surface is determined after an X-ray examination, with the distance being recorded by a memory in the transponder.
  • the transponder is coupled to a tire module in the vehicle tire, with the tire module having an autonomous transmitting and receiving unit.
  • measurement signals can be easily transmitted from the transponder to a transmitting and receiving unit in the vehicle.
  • the figure 1 shows schematically a tire section with the tread strip 13 and the tire inner side 11 in a radial sectional view.
  • the figure shows three tread blocks or tread blocks 4 of the tread 13 arranged side by side.
  • the section shown also includes a belt package 8, carcass layers 9, a tire inner liner 14 and circumferential grooves 10.
  • the tire sensor 6 consists of three transponders 1 stacked on top of one another, which are embedded in a pin-shaped embedding material 5 are embedded.
  • the embedding material preferably consists of a plastic casting compound and encloses the transponder 1 completely.
  • the tire sensor 6 with the embedding material and the transponders 1 has a cylindrical contour that is similar to a tire spike.
  • the tire sensor 6 is prefabricated and inserted into a cavity in the tread block 4 after the tire has been vulcanized.
  • the tire sensor 6 is fixed, for example, by means of a frictional connection. It is also conceivable to fix the tire sensor in the tread block with an adhesive material.
  • the tire sensor 6 terminates at the top with the tread surface 17, which indicates the profile depth or profile height 7 in the case of a new tire.
  • a tire module 12 is arranged on the inside 11 of the tire in the immediate vicinity of the tire sensor 6 and has an autonomous transmitting and receiving unit.
  • the three transponders shown can transmit signals directly to tire module 12 .
  • the tire module 12 forwards the received signals to a transmitting and receiving unit in the vehicle. With increasing tread wear, the top transponder 1 disappears first. If the signal from the top transponder is no longer received, the remaining tread depth can be determined from this information.
  • the secondary antenna can be, for example, an antenna made of conductive rubber and arranged on the inside of the tire.
  • the lowest transponder 1 is arranged in the immediate vicinity of the profile base. If no signal is received from this transponder, the tire has reached the minimum tread depth. In this case, a corresponding signal would be forwarded to the transmitting and receiving units in the vehicle.
  • the figure 2 shows another embodiment.
  • a large number of tire sensors 6 are arranged in different areas of the tread strip 13 .
  • the transponders 1 are again each embedded in a pin-shaped embedding material 15 .
  • the transponders 1 each have a different distance from the tread surface 17.
  • the tire sensors are arranged in tread blocks 4 lying next to one another. This allows the tread depth to be monitored in different areas of the tread. All tire sensors 6 can transmit their signals directly to tire module 12 .
  • the tire sensors it is also possible for the tire sensors to communicate directly with a handheld reader that is held on the vehicle tire. In this embodiment, it would not be necessary to arrange a corresponding tire module 12 on the inside of the tire.
  • readers are located in the floor of an auto repair shop. As soon as the vehicle passes the reader, the data from the tire sensors are automatically evaluated. The workshop, a vehicle display or a Fleet management would then receive direct information on the tread depth of the vehicle tires.
  • the figure 3 shows the embodiment in FIG figure 1 after a reduced tread depth due to tread wear.
  • the tire sensor 6 only has two transponders 1 due to tread wear.
  • the top transponder 1 would no longer send a signal. From this information, the remaining tread depth of the vehicle tire can be determined in a simple manner.

Description

Die Erfindung betrifft einen Fahrzeugreifen.The invention relates to a vehicle tire.

Es ist bekannt, bei Fahrzeugreifen eine Reifendrucküberwachung einzusetzen, um einen Druckverlust sicher zu detektieren.It is known to use tire pressure monitoring in vehicle tires in order to reliably detect a loss of pressure.

Außerdem gibt es unterschiedliche Ansätze, die Profiltiefe eines Fahrzeugreifens mit einem Reifensensor zu ermitteln. Die meisten bisherigen Konzepte wurden jedoch nicht umgesetzt, da sie unterschiedliche Nachteile besitzen. Einer der Nachteile besteht insbesondere darin, dass viele Sensoren eine eigene Energieversorgung in Form einer Batterie benötigen.There are also different approaches to determining the tread depth of a vehicle tire with a tire sensor. However, most of the previous concepts have not been implemented because they have different disadvantages. One of the disadvantages is that many sensors require their own power supply in the form of a battery.

Die WO 2006/098840 A2 , US 2006/124214 A1 , WO 2013/107281 A1 und
EP 1 522 425 A1 offenbaren bekannte Vorrichtungen zur Bestimmung von Profitiefen von Fahrzeugreifen.the WO 2006/098840 A2 , U.S. 2006/124214 A1 , WO 2013/107281 A1 and
EP 1 522 425 A1 disclose known devices for determining tread depths of vehicle tires.

Der Erfindung lag die Aufgabe zugrunde, einen Fahrzeugreifen bereitzustellen, mit dem Fahrzeugreifen mit Reifensensoren verbessert werden können.The object of the invention was to provide a vehicle tire with which vehicle tires with tire sensors can be improved.

Gelöst wird die Aufgabe durch Anspruch 1.The problem is solved by claim 1.

Ein Vorteil der Erfindung ist insbesondere darin zu sehen, dass mit dem neuen Reifensensor der Profilabrieb im Fahrzeugreifen auf einfache Weise und automatisiert ermittelt werden kann.An advantage of the invention can be seen in particular in the fact that the tread wear in the vehicle tire can be determined in a simple and automated manner with the new tire sensor.

Der einzelne Transponder oder eine Vielzahl von Transpondern sind in einem stiftförmigen Einbettungsmaterial angeordnet. Das stiftförmige Einbettungsmaterial mit den Transpondern lässt sich auf einfache Weise in bestimmten Bereichen des Laufstreifens anordnen. Außerdem lassen sich diese Form von Reifensensoren einfach vorkonfektionieren und können dann wie Reifenspikes in bestimmten Bereichen des Laufstreifens eingebracht werden. Die Transponder, die insbesondere einen RFID-Chip aufweisen, können außerdem auf einfache Weise mit entsprechenden Lesegeräten ausgelesen werden. Bei fortschreitenden Profilabrieb wird ebenfalls das stiftförmige Einbettungsmaterial mit den einzelnen Transpondern abgerieben. Wenn bei einer entsprechenden Abfrage keine Signale mehr von einem Transponder empfangen werden, lässt sich aus dieser Information der Profilabrieb beziehungsweise die Profilhöhe oder die Profiltiefe ermitteln. Ein weiterer wesentlicher Vorteil bei diesem Reifensensor besteht darin, dass der Sensor keine eigene Batterieversorgung benötigt und die Tranpondersignale über eine Funkverbindung ausgelesen werden können.The individual transponder or a plurality of transponders are arranged in a stick-shaped encapsulant. The stick-shaped embedding material with the transponders can easily be placed in certain areas of the tread arrange In addition, this form of tire sensors can be easily pre-assembled and can then be inserted in certain areas of the tread like tire spikes. The transponders, which in particular have an RFID chip, can also be easily read using appropriate readers. As profile wear progresses, the pin-shaped embedding material with the individual transponders is also worn away. If no more signals are received from a transponder when a corresponding query is made, this information can be used to determine the tread wear or the tread height or tread depth. Another major advantage of this tire sensor is that the sensor does not require its own battery supply and the transponder signals can be read out via a radio link.

Es ist vorgesehen, dass der Reifensensor in Form eines Zylinders ausgebildet ist, wobei die Höhenabmessung des Zylinders größer ist als der Durchmesser des Zylinders.Provision is made for the tire sensor to be in the form of a cylinder, with the height dimension of the cylinder being greater than the diameter of the cylinder.

Durch diese Form lässt sich der Reifensensor einfach und mit einer hohen Festigkeit in bestimmten Bereichen des Laufstreifens anordnen.With this shape, the tire sensor can be arranged easily and with a high degree of strength in specific areas of the tread.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Durchmesser des Reifensensors zwischen 2 und 10 mm beträgt.In a further advantageous development of the invention, it is provided that the diameter of the tire sensor is between 2 and 10 mm.

Dadurch lässt sich der Reifensensor mit dem Transponder einfach und mit einer hohen Robustheit in einen Profilblock des Laufstreifens einsetzen.As a result, the tire sensor with the transponder can be used easily and with a high level of robustness in a tread block of the tread.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass das Einbettungsmaterial aus einer Kunststoffvergussmasse besteht.In a further advantageous development of the invention, it is provided that the embedding material consists of a plastic casting compound.

Dadurch lässt sich der Reifensensor einfach vorkonfektionieren. Ein weiterer Vorteil der Kunststoffvergussmasse besteht in einer hohen Kompatibilität zum Gummimaterial des Laufstreifens.This makes it easy to pre-assemble the tire sensor. Another advantage of the plastic casting compound is that it is highly compatible with the rubber material of the tread.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Reifensensor mit dem Transponder nach der Reifenvulkanisation in den Laufstreifen eingebracht wird.In a further advantageous development of the invention, it is provided that the tire sensor with the transponder is introduced into the tread strip after the tire has been vulcanized.

Dadurch wird gewährleistet, dass die Transponder nicht bei der Reifenvulkanisation beschädigt werden.This ensures that the transponders are not damaged during tire vulcanization.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Reifensensor mit einer Bespikungsvorrichtung in einen vorkonfektionierten Hohlraum im Laufstreifen eingebracht wird.In a further advantageous development of the invention, it is provided that the tire sensor is introduced into a prefabricated cavity in the tread with a spiked device.

Dadurch lassen sich die Reifensensoren einfach und schnell in bestimmte Bereiche des Laufstreifens einsetzen.This allows the tire sensors to be quickly and easily inserted into specific areas of the tread.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Reifensensor über einen Kraftschluss, einen Formschluss, eine Klebeverbindung und/ oder einen Haftvermittler im Laufstreifen gehalten wird.In a further advantageous development of the invention, it is provided that the tire sensor is held in the tread by means of a force fit, a form fit, an adhesive connection and/or an adhesion promoter.

Dadurch lassen sich die Reifensensoren mit den Transpondern mit einer hohen Festigkeit im Laufstreifen fixieren. Bei einer kraftschlüssigen Verbindung würde der Lochdurchmesser des Hohlraums im Laufstreifen geringer sein als der Außendurchmesser des Reifensensors.This allows the tire sensors with the transponders to be fixed in the tread with high strength. With a non-positive connection, the hole diameter of the cavity in the tread would be smaller than the outside diameter of the tire sensor.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Transponder in Form einer flachen Tablette mit einer Materialdicke zwischen 1 und 5 mm, vorzugsweise zwischen 1 und 2 mm, ausgebildet ist.In a further advantageous development of the invention, it is provided that the transponder is designed in the form of a flat tablet with a material thickness of between 1 and 5 mm, preferably between 1 and 2 mm.

Dadurch lässt sich die Profiltiefe mit einer relativ hohen Genauigkeit bestimmen.This allows the tread depth to be determined with a relatively high level of accuracy.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass in einem Reifensensor eine Vielzahl von Transpondern stappelförmig übereinander angeordnet sind.In a further advantageous development of the invention, it is provided that a multiplicity of transponders are stacked one above the other in a tire sensor.

Ein entsprechendes Ausführungsbeispiel zeigt die Figur 1. Diese Ausführung lässt sich besonders einfach umsetzen, da nur ein einzelner Reifensensor in einem bestimmten Bereich des Laufstreifens angeordnet werden muss.A corresponding exemplary embodiment is shown in FIG figure 1 . This design is particularly easy to implement since only a single tire sensor has to be arranged in a specific area of the tread.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass in einem Reifensensor jeweils ein Transponder angeordnet ist, wobei in benachbarten Profilklötzen weitere Reifensensoren angeordnet sind und die einzelnen Transponder in unterschiedlichen Abständen zur Laufstreifenoberfläche angeordnet sind.In a further advantageous development of the invention, it is provided that a transponder is arranged in each tire sensor, with further tire sensors being arranged in adjacent tread blocks and the individual transponders being arranged at different distances from the tread surface.

Ein entsprechendes Ausführungsbeispiel zeigt die Figur 2. Bei dieser Ausführung werden mehrere Reifensensoren in bestimmten Bereichen des Laufstreifens beziehungsweise in bestimmten Profilblöcken platziert. Bei dieser Ausführung werden mehrere Bereiche des Laufstreifens im Hinblick auf die Profiltiefe überwacht.A corresponding exemplary embodiment is shown in FIG figure 2 . In this design, multiple tire sensors are placed in specific areas of the tread or in specific tread blocks. With this design, several areas of the tread are monitored with regard to the tread depth.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Transponder mit einer im Fahrzeugreifen angeordneten Sekundärantenne gekoppelt ist. Dadurch lässt die Sende- und Empfangsreichweite des Transponders erheblich erhöhen.In a further advantageous development of the invention, it is provided that the transponder is coupled to a secondary antenna arranged in the vehicle tire. This significantly increases the transmission and reception range of the transponder.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Sekundärantenne durch Gürteldrähte des Reifengürtels gebildet wird.In a further advantageous development of the invention, it is provided that the secondary antenna is formed by belt wires of the tire belt.

Dadurch kann darauf verzichtet werden, eine separate Sekundärantenne im Reifen anzuordnen.As a result, there is no need to arrange a separate secondary antenna in the tire.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Sekundärantenne durch leitfähiges Gummimaterial gebildet wird, wobei das leitfähige Gummimaterial im Fahrzeugreifen in Form einer Antenne angeordnet ist.In a further advantageous development of the invention, it is provided that the secondary antenna is formed by conductive rubber material, with the conductive rubber material being arranged in the vehicle tire in the form of an antenna.

Das leitfähige Gummimaterial hat den Vorteil, dass es eine hohe Kompatibilität zum Gummimaterial des Reifens besitzt.The conductive rubber material has the advantage that it has high compatibility with the rubber material of the tire.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Abstand des Transponders zur Laufstreifenoberfläche nach einer Röntgenuntersuchung bestimmt wird, wobei der Abstand durch einen Speicher des Transponders erfasst wird.In a further advantageous development of the invention, it is provided that the distance between the transponder and the tread surface is determined after an X-ray examination, with the distance being recorded by a memory in the transponder.

Dadurch lässt sich die Profiltiefe des Reifens mit einer hohen Genauigkeit erfassen.This allows the tread depth of the tire to be recorded with a high level of accuracy.

In einer weiteren vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Transponder mit einem Reifenmodul im Fahrzeugreifen gekoppelt ist, wobei das Reifenmodul eine autarke Sende- und Empfangseinheit aufweist.In a further advantageous development of the invention, it is provided that the transponder is coupled to a tire module in the vehicle tire, with the tire module having an autonomous transmitting and receiving unit.

Dadurch lassen sich Messsignale von dem Transponder auf einfache Weise zu einer Sende- und Empfangseinheit im Fahrzeug übertragen.As a result, measurement signals can be easily transmitted from the transponder to a transmitting and receiving unit in the vehicle.

Anhand eines Ausführungsbeispiels wird die Erfindung im Folgenden näher beschrieben.The invention is described in more detail below on the basis of an exemplary embodiment.

Es zeigen:

  • Fig. 1: einen Reifenabschnitt in einer Radialschnittansicht mit einem Reifensensor
  • Fig. 2: einen Reifenabschnitt in einer Radialschnittansicht mit drei Reifensensoren
  • Fig. 3: einen Reifenabschnitt mit reduzierter Profilhöhe
Show it:
  • 1 1: a tire section in a radial sectional view with a tire sensor
  • 2 1: a tire section in a radial sectional view with three tire sensors
  • 3 : a tire section with reduced profile height

Die Figur 1 zeigt schematisch einen Reifenabschnitt mit dem Laufstreifen 13 und der Reifeninnenseite 11 in einer Radialschnittansicht.the figure 1 shows schematically a tire section with the tread strip 13 and the tire inner side 11 in a radial sectional view.

Die Figur zeigt drei nebeneinander angeordnete Profilblöcke beziehungsweise Profilklötze 4 des Laufstreifens 13. Der dargestellte Abschnitt umfasst ebenfalls ein Gürtelpaket 8, Karkasslagen 9, einen Reifeninnerliner 14 und Umfangsrillen 10. Der Reifensensor 6 besteht aus drei übereinander gestapelten Transpondern 1, die in ein stiftförmiges Einbettungsmaterial 5 eingebettet sind. Das Einbettungsmaterial besteht vorzugsweise aus einer Kunststoffvergussmasse und umschließt die Transponder 1 vollständig. Der Reifensensor 6 mit dem Einbettungsmaterial und den Transpondern 1 weist eine zylinderförmige Kontur auf, die einem Reifenspike ähnlich ist. Der Reifensensor 6 wird vorkonfektioniert und nach der Reifenvulkanisation in einen Hohlraum des Profilblockes 4 eingesetzt. Die Fixierung des Reifensensors 6 erfolgt beispielsweise über einen Kraftschluss. Außerdem ist denkbar, den Reifensensor mit einem Klebematerial im Profilblock zu fixieren.The figure shows three tread blocks or tread blocks 4 of the tread 13 arranged side by side. The section shown also includes a belt package 8, carcass layers 9, a tire inner liner 14 and circumferential grooves 10. The tire sensor 6 consists of three transponders 1 stacked on top of one another, which are embedded in a pin-shaped embedding material 5 are embedded. The embedding material preferably consists of a plastic casting compound and encloses the transponder 1 completely. The tire sensor 6 with the embedding material and the transponders 1 has a cylindrical contour that is similar to a tire spike. The tire sensor 6 is prefabricated and inserted into a cavity in the tread block 4 after the tire has been vulcanized. The tire sensor 6 is fixed, for example, by means of a frictional connection. It is also conceivable to fix the tire sensor in the tread block with an adhesive material.

Der Reifensensor 6 schließt an der Oberseite mit der Laufstreifenoberfläche 17 ab, die bei einem Neureifen die Profiltiefe bzw. Profilhöhe 7 anzeigt. In unmittelbarer Nähe zum Reifensensor 6 ist auf der Reifeninnenseite 11 ein Reifenmodul 12 angeordnet, welches über eine autarke Sende- und Empfangseinheit verfügt. Die drei dargestellten Transponder können Signale direkt an das Reifenmodul 12 übertragen. Das Reifenmodul 12 leitet die empfangenen Signale an eine Sende- und Empfangseinheit im Fahrzeug weiter. Bei einem zunehmenden Profilabrieb verschwindet zunächst der oberste Transponder 1. Wenn das Signal des obersten Transponders nicht mehr empfangen wird, lässt sich aus dieser Information die verbleibende Profiltiefe bestimmen.The tire sensor 6 terminates at the top with the tread surface 17, which indicates the profile depth or profile height 7 in the case of a new tire. A tire module 12 is arranged on the inside 11 of the tire in the immediate vicinity of the tire sensor 6 and has an autonomous transmitting and receiving unit. The three transponders shown can transmit signals directly to tire module 12 . The tire module 12 forwards the received signals to a transmitting and receiving unit in the vehicle. With increasing tread wear, the top transponder 1 disappears first. If the signal from the top transponder is no longer received, the remaining tread depth can be determined from this information.

Bei der Sekundärantenne kann es sich beispielsweise um eine Antenne handeln, die aus leitfähigem Gummi besteht und auf der Reifeninnenseite angeordnet ist. Der unterste Transponder 1 ist in unmittelbarer Nähe zum Profilgrund angeordnet. Wenn von diesem Transponder kein Signal mehr empfangen wird, hat der Reifen die Mindestprofiltiefe erreicht. In diesem Fall würde ein entsprechendes Signal an die Sende- und Empfangseinheiten im Fahrzeug weitergeleitet werden.The secondary antenna can be, for example, an antenna made of conductive rubber and arranged on the inside of the tire. The lowest transponder 1 is arranged in the immediate vicinity of the profile base. If no signal is received from this transponder, the tire has reached the minimum tread depth. In this case, a corresponding signal would be forwarded to the transmitting and receiving units in the vehicle.

Die Figur 2 zeigt ein weiteres Ausführungsbeispiel. Bei dieser Ausführung sind eine Vielzahl von Reifensensoren 6 in unterschiedlichen Bereichen des Laufstreifens 13 angeordnet. Die Transponder 1 sind wieder jeweils in ein stiftförmiges Einbettungsmaterial 15 eingebettet. Die Transponder 1 haben jeweils einen unterschiedlichen Abstand zur Laufstreifenoberfläche 17. Die Reifensensoren sind in nebeneinander liegenden Profilblöcken 4 angeordnet. Dadurch kann die Profiltiefe in unterschiedlichen Bereichen des Laufstreifens überwacht werden. Alle Reifensensoren 6 können ihre Signale direkt an das Reifenmodul 12 übertragen.the figure 2 shows another embodiment. In this embodiment, a large number of tire sensors 6 are arranged in different areas of the tread strip 13 . The transponders 1 are again each embedded in a pin-shaped embedding material 15 . The transponders 1 each have a different distance from the tread surface 17. The tire sensors are arranged in tread blocks 4 lying next to one another. This allows the tread depth to be monitored in different areas of the tread. All tire sensors 6 can transmit their signals directly to tire module 12 .

Bei einer anderen Ausführung ist es ebenfalls möglich, dass die Reifensensoren direkt mit einem Handlesegerät kommunizieren, welches an den Fahrzeugreifen gehalten wird. Bei dieser Ausführung wäre es nicht notwendig, auf der Reifeninnenseite ein entsprechendes Reifenmodul 12 anzuordnen.In another embodiment, it is also possible for the tire sensors to communicate directly with a handheld reader that is held on the vehicle tire. In this embodiment, it would not be necessary to arrange a corresponding tire module 12 on the inside of the tire.

Bei einer weiteren Ausführung sind Lesegeräte im Boden einer Autowerkstatt angeordnet. Sobald das Fahrzeug das Lesegerät passiert, werden die Daten der Reifensensoren automatisch ausgewertet. Die Werkstatt, ein Fahrzeugdisplay oder ein Fuhrparkmanagement würden anschließend direkt Informationen zur Profiltiefe der Fahrzeugreifen erhalten.In another embodiment, readers are located in the floor of an auto repair shop. As soon as the vehicle passes the reader, the data from the tire sensors are automatically evaluated. The workshop, a vehicle display or a Fleet management would then receive direct information on the tread depth of the vehicle tires.

Die Figur 3 zeigt das Ausführungsbeispiel in der Figur 1 nach einer reduzierten Profiltiefe aufgrund eines Profilabriebes. Der Reifensensor 6 weist aufgrund des Profilabriebes nur noch zwei Transponder 1 auf. Der oberste Transponder 1 würde kein Signal mehr senden. Aus dieser Information lässt sich die verbleibende Profiltiefe des Fahrzeugreifens auf einfache Weise ermitteln.the figure 3 shows the embodiment in FIG figure 1 after a reduced tread depth due to tread wear. The tire sensor 6 only has two transponders 1 due to tread wear. The top transponder 1 would no longer send a signal. From this information, the remaining tread depth of the vehicle tire can be determined in a simple manner.

BezugszeichenlisteReference List (Teil der Beschreibung)(part of the description)

11
Transpondertransponder
22
Radiale Richtung des FahrzeugreifensRadial direction of the vehicle tire
33
Axiale Richtung des FahrzeugreifensAxial direction of vehicle tire
44
Profilblock bzw. ProfilklotzProfile block or profile block
55
Stiftförmiges Einbettungsmaterial mit übereinander gestapelten TranspondernStick-shaped embedding material with transponders stacked on top of each other
66
Reifensensor mit Einbettungsmaterial und TransponderTire sensor with embedding material and transponder
77
Profilhöhe bzw. Profiltiefe bei einem NeureifenProfile height or profile depth for a new tire
88th
Reifengürtel mit GürteldrähtenTire belt with belt wires
99
Karkasslagencarcass plies
1010
Umfangsrillecircumferential groove
1111
Reifeninnenseitetire inside
1212
Reifenmodultire module
1313
Laufstreifentread
1414
Reifeninnerlinertire inner liner
1515
Stiftförmiges Einbettungsmaterial mit jeweils einem TransponderStick-shaped embedding material, each with a transponder
1616
Reduzierte Profilhöhe bzw. Profiltiefe nach einem ProfilabriebReduced tread height or tread depth after tread abrasion
1717
Laufstreifenoberfläche bzw. LaufstreifenoberseiteTread surface or tread upper side

Claims (14)

  1. Vehicle tyre having a tread (19) with profile blocks (4), a carcass ply (9), a tyre belt (8), sidewalls and a tyre inner side (11),
    wherein a tyre sensor for measuring profile abrasion is arranged in the vehicle tyre,
    a tyre sensor (6) is arranged in at least one profile block (4) of the tread (13),
    wherein the tyre sensor (6) comprises an embedding material (5, 15) in the form of a pin with at least one transponder (1),
    wherein the transponders (1) are embedded in the embedding material (5, 15) at a predetermined distance from the tread side (17),
    wherein, when there is profile abrasion of the vehicle tyre, the number of transponders (1) is reduced and
    the profile abrasion can be determined by an evaluation of the number of transponders (1) in the embedding material (5, 15),
    characterized in that
    the tyre sensor (6) takes the form of a cylinder, wherein the height dimension of the cylinder is greater than the diameter of the cylinder.
  2. Vehicle tyre according to Claim 1,
    characterized in that
    the diameter of the tyre sensor (6) is between 2 and 10 mm.
  3. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the embedding material (5, 15) consists of a plastics potting compound.
  4. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the tyre sensor (6) with the transponder (1) is introduced into the tread (13) after the vulcanizing of the tyre.
  5. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the embedding material (5, 15) in the form of a pin is introduced into a prefabricated cavity in the tread (13) by a spiking device.
  6. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the tyre sensor (6) is held in the tread (13) by a force fit, a form fit, an adhesive bond and/or a bonding agent.
  7. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the transponder (1) takes the form of a flat tablet with a material thickness of between 1 and 5 mm.
  8. Vehicle tyre according to one of the preceding claims,
    characterized in that
    a multiplicity of transponders (1) are arranged one on top of the other in the form of a stack in the tyre sensor (6).
  9. Vehicle tyre according to one of the preceding claims,
    characterized in that
    a transponder (1) is respectively arranged in a tyre sensor (6),
    wherein further tyre sensors (6) are arranged in adjacent profile blocks (4) and the individual transponders (1) are arranged at different distances from the tread surface (17).
  10. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the transponder (1) has a primary antenna and is coupled to a secondary antenna arranged in the vehicle tyre.
  11. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the secondary antenna is formed by belt wires of the tyre belt (8).
  12. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the secondary antenna is formed by conductive rubber material,
    wherein the conductive rubber material is arranged in the vehicle tyre in the form of an antenna.
  13. Vehicle tyre according to one of the preceding claims, characterized in that the distance of the transponder (1) from the tread surface (17) is determined by an x-ray examination, wherein the distance is recorded by a memory of the transponder (1).
  14. Vehicle tyre according to one of the preceding claims,
    characterized in that
    the transponder (1) is coupled to a tyre module (12) in the vehicle tyre,
    wherein the tyre module (12) has an autonomous transmitting and receiving unit.
EP18203921.4A 2018-01-25 2018-11-01 Vehicle tyres Active EP3517323B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018201149.4A DE102018201149A1 (en) 2018-01-25 2018-01-25 vehicle tires

Publications (2)

Publication Number Publication Date
EP3517323A1 EP3517323A1 (en) 2019-07-31
EP3517323B1 true EP3517323B1 (en) 2022-03-02

Family

ID=64109750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18203921.4A Active EP3517323B1 (en) 2018-01-25 2018-11-01 Vehicle tyres

Country Status (2)

Country Link
EP (1) EP3517323B1 (en)
DE (1) DE102018201149A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020116992A1 (en) * 2001-02-26 2002-08-29 Trw Inc. System and method for monitoring wear of a vehicle component
DE60314423T2 (en) * 2003-10-06 2008-02-21 Eximia S.R.L. Automatic wear warning system for tires and corresponding tires for this system
US7509834B2 (en) * 2004-12-15 2009-03-31 International Business Machines Corporation Monitoring of wearing surface layer thickness
US7180409B2 (en) * 2005-03-11 2007-02-20 Temic Automotive Of North America, Inc. Tire tread wear sensor system
US20080084285A1 (en) * 2006-10-05 2008-04-10 Kulvir Singh Bhogal System and method for autonomic detection of tire tread wear
CN202623810U (en) * 2012-01-18 2012-12-26 毕雪松 Tire with electronic label

Also Published As

Publication number Publication date
DE102018201149A1 (en) 2019-07-25
EP3517323A1 (en) 2019-07-31

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